243152987285 has 16 divisors (see below), whose sum is σ = 318206058240. Its totient is φ = 177286224960.

The previous prime is 243152987279. The next prime is 243152987327. The reversal of 243152987285 is 582789251342.

It is not a de Polignac number, because 243152987285 - 2²⁰ = 243151938709 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 243152987285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23670911 + ... + 23681180.

It is an arithmetic number, because the mean of its divisors is an integer number (19887878640).

Almost surely, 2^243152987285 is an apocalyptic number.

It is an amenable number.

243152987285 is a deficient number, since it is larger than the sum of its proper divisors (75053070955).

243152987285 is a wasteful number, since it uses less digits than its factorization.

243152987285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47352188.

The product of its digits is 9676800, while the sum is 56.

The spelling of 243152987285 in words is "two hundred forty-three billion, one hundred fifty-two million, nine hundred eighty-seven thousand, two hundred eighty-five".